Water pump AA/AB 332/H0893 Perkins, aftermarket

Water pump AA/AB 332/H0893 is an aftermarket part for the Perkins-engined JCB machines. According to the product card, the pump is for Perkins AA and AB-series engines.

Pump life depends most on coolant quality: in systems run on water or with old antifreeze, scale and corrosion wear the impeller and score the seal faces. An over-tight belt also ruins the pump bearing early. Belt tension is therefore kept at the service value and the antifreeze is changed at the maker's recommended intervals. A few drops from the weep hole at first can be normal, but a steady leak means the pump needs replacing.

Specifications

Compatibility

According to the product card, 332/H0893 is a water pump. The card also lists 02/201457, 02/201630, U5MW0156, U5MW0160. Fit is confirmed by the part number. The catalogue also has the genuine version of this part. Other parts are in Water pumps.

Fitting

Before the change, let the engine cool and drain the coolant into a suitable container. Slacken and remove the belt and undo the pump bolts. Clean the mating faces, fit the new pump with a new gasket or O-ring and tighten the bolts in a cross pattern to the specified torque. Refit the belt and set its tension, fill the system with the correct antifreeze and bleed it. Run the engine and check for leaks and temperature. Recheck the belt tension after the first run.